查询词典 ecosystem

Ecosystem element balance has been a main focus of global change ecology and biogeochemical cycle research.

生态系统元素平衡是当前全球变化生态学和生物地球化学循环的研究热点和焦点。

Soil microbes are the important components of soil ecosystem, exhibiting the important role in biogeochemical cycle. They are very sensitive to the changes of soil environments.

土壤微生物是土壤生态系统的重要组分，在生物地球化学循环过程中有重要的作用，对土壤环境变化和胁迫的反应十分灵敏。

The use of the carbon cycle model with an explicit ecosystem is a developing trend in the study of biogeochemical cycle of carbon dioxide and its response to global change.

还讨论了模拟海洋碳循环的现状和存在的问题。

S a main source and sink of nitrogen from lake wetland ecosystem, lake sediment has an important significance for biogeochemical cycle of nitrogen.

bstract 湖泊底泥作为湖泊湿地生态系统中氮素的主要源与汇，对氮素的生物地球化学循环具有重要意义。

The understanding of biogeochemical cycle of hydrogen, oxygen, carbon, nitrogen, and sulfur elements in nature ecosystem have increased substantially in the past two decades owing to the improvement of gas isotope ratio mass spectrometer and the wide application of isotopic studies with these elements.

近20年由於「气相同位素比值质谱仪」的改良和氢、氧、碳、氮和硫等稳定同位素的广泛研究，稳定同位素的研究技术已实质增加我们对於这些元素在自然生態系中生地化循环的瞭解。

According to the new vision of the committee, NEON should be focused on the six critical environmental challenges that the nation faces, including biodiversity, species composition and ecosystem functioning; ecological aspects of biogeochemical cycle, ecological implcations of climate change, ecology and evolution of infectious diseases, invasive species and land use and habitat alteration.

新的方案建议NEON应重点关注生物多样性、物种组成与生态系统功能、生物地球化学循环的生态学影响、气候变化的生态学内涵、传染病的生态学和演化、入侵种以及土地利用和栖息地的丧失这6个美国国家层次当前所面临的最严峻的环境挑战。

Wetland biogeochemistry is the core of wetland ecosystem ecology process.

湿地生物地球化学是湿地生态系统生态过程的核心研究内容。

It is dedicated to teaching and research ecosystem function, ocean science, environmental protection, Biogeochemistry, Tropical Environmental Science, etc.

主要致力于生态系统功能、海洋科学、环保、生物地球化学、热带环境科学等学科的教学与研究。

They are storehouses of biological diversity and endangered species and an essential part of the global ecosystem.

它们是生物多样性和濒危物种的仓库，是全球生态系统的一部分。

Biological diversity and ecosystem function in human society is facing has become a major scientific question.

与生态系统功能的关系已成为当前人类社会面临的一个重大科学问题。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。